What direction would I go to look for
one. any model you have the best luck with? thanks
----- Original Message -----
Sent: Saturday, October 23, 2004 10:14
PM
Subject: Re: Fw: [Repeater-Builder]
Direct TV type dish?
Use a multiswitch.
I'm working on a 48" dish right now
for looking at 101 alone ;) Hope to be rid of a LOT of rain
fade.
73, Tony W4ZT
At 09:00 PM 10/23/2004, you wrote:
Tom, a
little help here? if I am going to look at sat. A and sat.
B with 2 dish's is there a way to hook them into the same input on one
receiver? thanks
John [EMAIL PROTECTED] -----
Original Message ----- From: TGundo 2003 To: Repeater-Builder@yahoogroups.com
Sent: Saturday, October 16, 2004 11:16 PM Subject: Re:
[Repeater-Builder] Direct TV type dish?
I work for a high-end Custom
home electronics company and deal with directv all of the time. Heres a few
bits you may or may not find intresting. 1. Rain fade. Want to
limit this? Put up three 1 meter dishes to look at the birds and have better
signal reception. Yes, its an eyesore, but you hardly ever get rain fade!.
The dishes are getting smaller and looking at three different positions in
the sky, so they give up gain with the dish itself to look at all of these
at the same time. They get away with this because the birds themselves are
relativly high power. You can use up to a 1 meter dish to look at any one
position in the sky and get much better signal, but not any bigger because
again, the dish is too focused, At the 101 degree position there are
actually three satellites which if I remember right are about 50 miles apart
from each other in orbit, but at 24000 miles away thats virtually a single
point in the sky from here. However, a dish bigger than 1 meter can single
out one of the satellites. For you who have directv and have looked at your
signal meter, with a 1 meter dish setup almost all of the transp! ond! ers
will read 100 all of the time with clear skys or even light clouds, and you
hear toto flying by when rain fade actually knocks the signal out all
together. 2. For long runs or commercial installs the standard
is RG-11 coax to maintain signal level. There are amplifiers used for this
as well. Stacker systems are becoming more common in MDU and high rise
buildings. Basically, conventional satellite systems work 900 to 1500 as
noted in a previously. The issue is that the reciever has to send a signal
to the dish to switch between the a and b lnbs to look at the different
birds, they cant both come down the line at the same time because they are
both oviously coming down at the same frequency. You cannot just "split" the
signal to multiple recievers because they would battle for control over the
dish as channels are changed. Because of that distribution of that to dozens
of recievers in a large building starts to get complicated because of
the voltage switches needed to facilitate the switching. The Stacker system
sends the second dish feed down at 1500- 2 gig, so that all of the signals
are on the line at the same ! time,! a on 900-1500, b on 1500 - 2000. Many
of the recievers out there already have tuners built in that can accept the
wideband input, just a simple trip into the service menu on the box and turn
it on! Now we can amplify and split as needed to feed as many as you want!
But RG-11 and 2 gig rated splitters and amps are a must. Thats
my two cents on the matter. Tom W9SRV
bob
<[EMAIL PROTECTED]> wrote:
- >
- > From: "russ"
- > Date: 2004/10/15 Fri AM 02:00:59 GMT
- > To:
- > Subject: [Repeater-Builder] Direct TV type dish?
- >
- >
- > Hey Does any one know what frequency that the coax line coming
from the LNB's to the receiver is? On direct TV.
- > 73 Russ, W3CH
- >
- > yes the cable is rg6
- >
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